12. Consolidated Financial Information-parent Company Only: Schedule of Condensed Balance Sheet (Details) - USD ($)	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Assets:
Cash and cash equivalents	$ 11,671,253	$ 7,802,831	$ 10,782,098
Total assets	59,008,867	53,612,371
Shareholders' equity:
Common stock	8,269	8,269
Additional paid-in-capital	15,677,626	14,752,644
Accumulated deficit	(12,348,988)	(12,038,281)
Total shareholders' equity	3,280,522	2,659,915	2,679,762
Parent Company
Assets:
Cash and cash equivalents	38,000	0	$ 0
Investment in United Bank of Philadelphia	3,242,000	2,660,000
Total assets	3,280,000	2,660,000
Shareholders' equity:
Series A preferred stock	1,000	1,000
Common stock	8,000	8,000
Additional paid-in-capital	15,677,000	14,753,000
Accumulated deficit	(12,349,000)	(12,038,000)
Net unrealized holding losses on securities available-for-sale	(57,000)	(64,000)
Total shareholders' equity	$ 3,280,000	$ 2,660,000